package learn1;

import java.util.Scanner;

public class 查找数组中元素 {
    public static void main(String[] args) {
        int[] arr={19,28,37,46,50};
        Scanner sc=new Scanner(System.in);
        System.out.println("请输入查找数据：");
        int number=sc.nextInt();

        int index=getIndex(arr,number);
        System.out.println("index="+index);
    }
    public static  int getIndex(int[] arr,int number){
        int index=-1;
        for (int i=0;i<arr.length;i++){
            if(arr[i]==number){
                index=i;
                break;
            }
        }
        return index;
    }
}
